File:NAVFAC Washington Educated Residents on Light Pollution (9018062794).jpg
Original file (977 × 729 pixels, file size: 136 KB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionNAVFAC Washington Educated Residents on Light Pollution (9018062794).jpg |
Naval Facilities Engineering Command Washington educated residents near the U.S. Naval Observatory about light pollution June 1 at the annual Glover Park Day. Light pollution affects the Naval Observatory’s ability to view the night sky when light shines upwards or is reflected off clouds and low atmosphere. “Folks in Glover Park were very happy to see the Navy show up as part of the community,” said Richard Owen, NAVFAC Washington. “We’ve reached out to the city about light pollution, but it’s also important to talk to our neighbors in the city.” Owen and other civilian and military representatives advised booth visitors on how they could help. Low pressure sodium lamps are the only types with an electromagnetic spectrum that can be filtered by telescopes at the Naval Observatory. Neighborhood residents were encouraged to use “full cut-off” light fixtures, which do not allow light to be directed above its horizontal plane, and to limit the amount of exterior light in urban areas. Doing so will reduce energy use and expense, creating a more environmentally sustainable city, they said. |
Date | Taken on 1 June 2013; 11 June 2013, 09:58 (original upload date) |
Source | NAVFAC Washington Educated Residents on Light Pollution |
Author | NAVFAC |
Licensing
[edit]- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
This image was originally posted to Flickr by NAVFAC at https://flickr.com/photos/39845951@N05/9018062794 (archive). It was reviewed on 18 June 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
18 June 2018
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 08:25, 18 June 2018 | 977 × 729 (136 KB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
JPEG file comment | * |
---|